filter system log dir does not make subscribe event (#4172)

weed/filer/filer.go

@@ -3,14 +3,15 @@ package filer
 import (
 	"context"
 	"fmt"
-	"github.com/seaweedfs/seaweedfs/weed/cluster"
-	"github.com/seaweedfs/seaweedfs/weed/pb"
-	"github.com/seaweedfs/seaweedfs/weed/pb/master_pb"
 	"os"
 	"sort"
 	"strings"
 	"time"
 
+	"github.com/seaweedfs/seaweedfs/weed/cluster"
+	"github.com/seaweedfs/seaweedfs/weed/pb"
+	"github.com/seaweedfs/seaweedfs/weed/pb/master_pb"
+
 	"google.golang.org/grpc"
 
 	"github.com/seaweedfs/seaweedfs/weed/glog"
@@ -254,7 +255,9 @@ func (f *Filer) ensureParentDirectoryEntry(ctx context.Context, entry *Entry, di
 				return fmt.Errorf("mkdir %s: %v", dirPath, mkdirErr)
 			}
 		} else {
-			f.NotifyUpdateEvent(ctx, nil, dirEntry, false, isFromOtherCluster, nil)
+			if !strings.HasPrefix("/"+util.Join(dirParts[:]...), SystemLogDir) {
+				f.NotifyUpdateEvent(ctx, nil, dirEntry, false, isFromOtherCluster, nil)
+			}
 		}
 
 	} else if !dirEntry.IsDirectory() {